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SCR Control:

Phase:

Operating Voltage:

Maximum Current:

Command Signal:

Control Feedback:

Diagnostic Indicators?

Soft Start?

Failure Detection / Alarm?

Mounting:

Operating Temperature:

Allow up to: overrange/margin
Use the overrange/margin to restrict your search to items whose full-scale range is close to your requirements.
(Overrange/margin requires both 'From' and 'To' values to work.)

Help with SCR Power Controllers specifications:

Operating Specifications
   SCR Control       
   Your choices are...         
   Phase Angle Fired       SCR gate is fired at a variable point in each half-wave to control output. 
   Zero Crossing Fired       SCR gate is fired for a variable proportion of half-waves to control output. 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
   Phase       
   Your choices are...         
   Single Phase         
   Three-Phase (2-leg)         
   Three Phase (3-leg)         
   Other       Any non-listed control signal. 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
   Operating Voltage       
   Your choices are...         
   <100 VAC         
   100-199 VAC         
   200-299 VAC         
   300-399 VAC         
   400-499 VAC         
   >500 VAC         
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
   Maximum Current:       This is the maximum rated current of the SCR power controller. 
   Search Logic:      All matching products will have a value greater than or equal to the specified value.
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Operating Features
   Command Signal       
   Your choices are...         
   Analog Voltage (e.g. 0-5V)       Output of controller is regulated by varying an analog input voltage signal. 
   Analog Current (e.g. 4-20 mA)       Output of controller is regulated by varying an analog input current signal. 
   Potentiometer       Output of controller is regulated by varying a potentiometer, often in the form of a dial on the front panel. 
   Other       Any non-listed command / control signal configuration. 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
   Control Feedback       
   Your choices are...         
   Output Voltage Control       Command signal controls voltage output. 
   Output Current Control       Command signal controls current output. 
   Output Power Control       Command signal controls power output. 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
   Diagnostic Indicators?       Visual indicators during ON condition (needles, LEDs, etc.). 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
   Soft Start?       Provides for a gradual ramp-up of output for load protection. 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
   Failure Detection / Alarm?       Circuitry that detects failures such as short circuits or missing cycles and provides interlock signal or audible alarm. 
   Search Logic:      "Required" and "Must Not Have" criteria limit returned matches as specified. Products with optional attributes will be returned for either choice.
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Mounting
           
   Your choices are...         
   Open Panel       Wall-mounted with open, accessible electrical components. 
   Enclosed Wall Mount       Enclosure provided along with mounting holes on the enclosure. 
   Rack Mount       Designed to be mounted in a rack assembly. 
   DIN Rail       Designed for mounting on a standard DIN Rail. 
   Free-standing / Cabinet       Stands on floor or integrally mounts in cabinet. 
   Other       Unlisted mounting method. 
   Search Logic:      All products with ANY of the selected attributes will be returned as matches. Leaving all boxes unchecked will not limit the search criteria for this question; products with all attribute options will be returned as matches.
   Operating Temperature:       Full required range of operating temperature. 
   Search Logic:      User may specify either, both, or neither of the limits in a "From - To" range; when both are specified, matching products will cover entire range. Products returned as matches will meet all specified criteria.
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